package com.byton.gateway.filter;


import lombok.extern.slf4j.Slf4j;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.http.server.reactive.ServerHttpResponse;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

@Slf4j
@Component
public class RtGlobalFilter implements GlobalFilter, Ordered {

    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        ServerHttpRequest request = exchange.getRequest();
        ServerHttpResponse response = exchange.getResponse();

        String url = request.getURI().toString();
        long startTime = System.currentTimeMillis();
        log.info("请求【{}】开始：时间{}",url,startTime);
        // ------------------以上是前置逻辑------------------

        Mono<Void> filter = chain.filter(exchange).doFinally((result) -> {
            // 后置逻辑
            long endTime = System.currentTimeMillis();
            log.info("请求【{}】结束：时间{}，耗时{}",url,endTime,(endTime-startTime));
            });

        return filter;
    }

    @Override
    public int getOrder() {
        return 0;
    }
}
